3997039000 has 32 divisors (see below), whose sum is σ = 9353073600. Its totient is φ = 1598815200.

The previous prime is 3997038973. The next prime is 3997039027. The reversal of 3997039000 is 9307993.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3997038973) and next prime (3997039027).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1997520 + ... + 1999519.

It is an arithmetic number, because the mean of its divisors is an integer number (292283550).

Almost surely, 2^3997039000 is an apocalyptic number.

It is an amenable number.

3997039000 is an abundant number, since it is smaller than the sum of its proper divisors (5356034600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3997039000 is a wasteful number, since it uses less digits than its factorization.

3997039000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997060 (or 3997046 counting only the distinct ones).

The product of its (nonzero) digits is 45927, while the sum is 40.

The square root of 3997039000 is about 63222.1401093003. The cubic root of 3997039000 is about 1587.0092640691.

The spelling of 3997039000 in words is "three billion, nine hundred ninety-seven million, thirty-nine thousand".